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Sigma Software Group logo
Sigma Software Group

We support enterprises, product houses, and startups with custom software solutions development and IT consulting.

Senior Data Scientist – AdTech

Data ScientistData ScientistFull TimeRemoteSeniorTeam 1,001-5,000Since 2002H1B No SponsorCompany SiteLinkedIn

Location

Poland

Posted

35 days ago

Salary

0

Seniority

Senior

Bachelor Degree4 yrs expEnglishPySparkPythonSparkSQL

Job Description

Senior Data Scientist – AdTech

Sigma Software Group

• Design, develop, and deploy machine learning models to solve complex business problems in the AdTech domain • Analyze large datasets to generate actionable insights and improve product performance • Build and maintain scalable data pipelines using big data tools and frameworks • Perform data preprocessing, cleaning, feature engineering, and model evaluation • Collaborate with cross-functional teams including engineers, analysts, and product managers • Ensure model accuracy, reliability, and scalability through rigorous testing and validation • Stay updated on emerging data science techniques, tools, and best practices • Contribute to team discussions, process improvements, and knowledge sharing

Job Requirements

  • 4+ years of experience in data science projects applying machine learning, statistical modeling, and data mining techniques
  • Hands-on experience working with Natural Language Processing (NLP) and Large Language Models (LLMs), including applying them to real-world business problems
  • Strong understanding of statistics and ability to apply statistical methods to analyze data and validate model performance
  • Proficiency in Python or R for data analysis and model development
  • Strong SQL skills and experience working with big data technologies such as Hive and Spark
  • Hands-on experience with PySpark or RSpark for large-scale data processing
  • Experience building, evaluating, or optimizing ML/NLP models in production or near-production environments
  • At least Upper-Intermediate level of English

Benefits

  • Flexible work arrangements
  • Professional development opportunities

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